Results 1 to 10 of about 95,067 (301)

Observation of sublimation of ice using terahertz spectroscopy [PDF]

Royal Society Open Science, 2020
Although many studies have investigated the phase change of water, few have focused on the sublimation of ice. This study revealed that ice sublimation can be observed using terahertz (THz) spectroscopy.
Keisuke Matsumura, Kodo Kawase, Kei Takeya   +2 more
doaj   +4 more sources

Elastic Constants of Ice by Brillouin Spectroscopy [PDF]

Journal of Glaciology, 1980
Abstract Brillouin spectroscopy has been used to measure the adiabatic elastic constants of laboratory-grown pure monocrystalline ice Ih at – 3°C. The values obtained were (in units of 10 8 N/m 2 ): c
P. H. Gammon, H. Kiefte, M. J. Clouter
core   +3 more sources

Monitoring the temperature-dependent elastic and anelastic properties in isotropic polycrystalline ice using resonant ultrasound spectroscopy [PDF]

The Cryosphere, 2016
The elastic and anelastic properties of ice are of interest in the study of the dynamics of sea ice, glaciers, and ice sheets. Resonant ultrasound spectroscopy allows quantitative estimates of these properties and aids calibration of active and passive ...
M. J. Vaughan, K. van Wijk, D. J. Prior, M. H. Bowman   +3 more
doaj   +2 more sources

Broadband spectroscopy of astrophysical ice analogues

Astronomy & Astrophysics
Context. Understanding the optical properties of astrophysical ices is crucial for modeling dust continuum emission and radiative transfer in dense, cold interstellar environments. Molecular nitrogen, a primary carrier of N in protoplanetary disks, plays
Kruczkiewicz F., Gavdush A. A., Ribeiro F., Campisi D., Vyjidak A., Giuliano B. M., Komandin G. A., Garnov S. V., Grassi T., Theulé P., Zaytsev K. I., Ivlev A. V., Caselli P.   +12 more
doaj   +8 more sources

2D IR spectroscopy of high-pressure phases of ice [PDF]

The Journal of Chemical Physics, 2017
We present experimental and simulated 2D IR spectra of some high-pressure forms of isotope-pure D2O ice and compare the results to those of ice Ih published previously [F. Perakis and P. Hamm, Phys. Chem. Chem. Phys. 14, 6250 (2012); L. Shi et al., ibid. 18, 3772 (2016)]. Ice II, ice V, and ice XIII have been chosen for this study, since this selection
Tran, Halina, Cunha, Ana V, Shephard, Jacob J, Shalit, Andrey, Hamm, Peter, Jansen, Thomas L C, Salzmann, Christoph G   +6 more
openaire   +8 more sources

Proton Ordering of Cubic Ice Ic: Spectroscopy and Computer Simulations

The Journal of Physical Chemistry C, 2014
Several proton-disordered crystalline ice structures are known to proton order at sufficiently low temperatures, provided that the right preparation procedure is used. For cubic ice, ice Ic, however, no proton ordering has been observed so far. Here, we subject ice Ic to an experimental protocol similar to that used to proton order hexagonal ice.
Geiger P, Dellago C, Macher M, Franchini C, Kresse G, Bernard J, Stern JN, Loerting T   +7 more
openaire   +4 more sources

Vacuum-UV spectroscopy of interstellar ice analogs [PDF]

Astronomy & Astrophysics, 2014
Dust grains in cold circumstellar regions and dark-cloud interiors at 10-20 K are covered by ice mantles. A nonthermal desorption mechanism is invoked to explain the presence of gas-phase molecules in these environments, such as the photodesorption induced by irradiation of ice due to secondary ultraviolet photons.
Cruz-Diaz, G. A., Caro, G. M. Muñoz, Chen, Y. -J., Yih, T. -S.   +3 more
openaire   +5 more sources

The Martian mid-latitude subsurface ice is the remnant of a past ice sheet [PDF]

Communications Earth & Environment
On Mars, a relatively pure water ice layer lies beneath several centimeters of dry-soil at midlatitudes. Its widespread presence poleward of 60° latitude was detected by remote neutron spectroscopy.
E. Vos, F. Forget, L. Lange, J. Naar, J. B. Clement, E. Millour   +5 more
doaj   +2 more sources

Dissolved organic carbon loss from Yedoma permafrost amplified by ice wedge thaw [PDF]

Environmental Research Letters, 2013
Pleistocene Yedoma permafrost contains nearly a third of all organic matter (OM) stored in circum-arctic permafrost and is characterized by the presence of massive ice wedges.
J E Vonk, P J Mann, K L Dowdy, A Davydova, S P Davydov, N Zimov, R G M Spencer, E B Bulygina, T I Eglinton, R M Holmes   +9 more
doaj   +2 more sources

The Investigation of Spin-Crossover Systems by Raman Spectroscopy: A Review

Magnetochemistry, 2022
Spin-crossover (SCO) is a well-documented phenomenon, being intensely investigated by a respectable number of researchers during the last decades. The conventional method for the investigation of SCO properties is by performing magnetic susceptibility ...
Zoi G. Lada
doaj   +1 more source